I would just get a new M/B and PSU, talking next to no money and ebay is a good place for a bargin. I have been looking at a socket 775 brannew in the box for 30 note's, PSU's well thats upto you really but i will say this, the branded PSU's tend to out put what they should over the cheap ones being +/- the 12v and so on.

Coolermaster do some nice ones.